Tide Quencher™ 2WS maleimide [TQ2WS maleimide]

Dye maleimides are the most popular tool for conjugating dyes to a peptide, protein, antibody, thiol-modified oligonucleotide or nucleic acid through their SH group. Maleimides react readily with the thiol group of proteins, thiol-modified oligonucleotides, and other thiol-containing molecules under neutral conditions. The resulting dye conjugates are quite stable.

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Additional ordering information

Telephone	1-800-990-8053
Fax	1-800-609-2943
Email	sales@aatbio.com
Quotation	Request
International	See distributors
Shipping	Standard overnight for United States, inquire for international

Physical properties

Molecular weight	612.72
Solvent	DMSO

Spectral properties

Absorbance (nm)	541
Correction Factor (260 nm)	0.100
Correction Factor (280 nm)	0.120
Extinction coefficient (cm ^-1 M ^-1)	48000

Storage, safety and handling

H-phrase	H303, H313, H333
Hazard symbol	XN
Intended use	Research Use Only (RUO)
R-phrase	R20, R21, R22
Storage	Freeze (< -15 °C); Minimize light exposure
UNSPSC	12352200

Alternative formats

Tide Quencher™ 2WS acid [TQ2WS acid]

Tide Quencher™ 2WS alkyne [TQ2WS alkyne]

Overview SDS Protocol

Molecular weight

612.72

Absorbance (nm)

541

Correction Factor (260 nm)

0.100

Correction Factor (280 nm)

0.120

Extinction coefficient (cm ^-1 M ^-1)

48000

TQ2WS is designed to be a superior quencher to FAM, HEX, TET, JOE, TF2 and rhodamine 6G. TQ2WS has (a). much stronger absorption; (b). much higher quenching efficiency; and (c). versatile reactive forms with much greater water solubility than other existing quenchers for labeling oligonucleotides and peptides. This TQ2WS product is the most-water soluble and non-fluorescent quencher for labeling oligos and peptides. We have demonstrated that TQ2WS is extremely useful for enhancing the water solubility of hydrophobic peptides. TQ2WS maleimide readily and selectively reacts with thiol compounds even under slightly acidic and neutral conditions.

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of Tide Quencher™ 2WS maleimide [TQ2WS maleimide] to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

	0.1 mg	0.5 mg	1 mg	5 mg	10 mg
1 mM	163.207 µL	816.033 µL	1.632 mL	8.16 mL	16.321 mL
5 mM	32.641 µL	163.207 µL	326.413 µL	1.632 mL	3.264 mL
10 mM	16.321 µL	81.603 µL	163.207 µL	816.033 µL	1.632 mL

Molarity calculator

Enter any two values (mass, volume, concentration) to calculate the third.

Mass (Calculate)		Molecular weight		Volume (Calculate)		Concentration (Calculate)		Moles
	/		=		x		=

Spectrum

Open in Advanced Spectrum Viewer

Spectral properties

Absorbance (nm)	541
Correction Factor (260 nm)	0.100
Correction Factor (280 nm)	0.120
Extinction coefficient (cm ^-1 M ^-1)	48000

Product Family

Name	Extinction coefficient (cm ^-1 M ^-1)	Correction Factor (260 nm)	Correction Factor (280 nm)
Tide Quencher™ 4WS maleimide [TQ4WS maleimide]	90000¹	0.149	0.136
Tide Quencher™ 5WS maleimide [TQ5WS maleimide]	130000	0.072	0.082
Tide Quencher™ 6WS maleimide [TQ6WS maleimide]	130000	0.120	0.102
Tide Quencher™ 7WS maleimide [TQ7WS maleimide]	140000	0.072	0.091
Tide Quencher™ 1 maleimide [TQ1 maleimide]	20000	0.147	0.194
Tide Quencher™ 3 maleimide [TQ3 maleimide]	22000	0.085	0.091
Tide Fluor™ 2WS maleimide [TF2WS Maleimide] Superior replacement for FITC	75000	-	0.11

Images

Figure 1. Dye maleimides are the most popular tool for conjugating dyes to a peptide, protein, antibody, thiol-modified oligonucleotide or nucleic acid through their SH group. Maleimides react readily with the thiol group of proteins, thiol-modified oligonucleotides, and other thiol-containing molecules under neutral conditions. The resulting dye conjugates are quite stable.

Citations

View all 7 citations: Citation Explorer

A mechanistic model to predict effects of cathepsin B and cystatin C on β-amyloid aggregation and degradation
Authors: Perlenfein, Tyler J and Murphy, Regina M
Journal: Journal of Biological Chemistry (2017): jbc--M117

Real-Time Detection of a Self-Replicating RNA Enzyme
Authors: Olea, Charles and Joyce, Gerald F
Journal: Molecules (2016): 1310

Maternal serum glycosylated fibronectin as a point-of-care biomarker for assessment of preeclampsia
Authors: Rasanen, Juha and Quinn, Matthew J and Laurie, Amber and Bean, Eric and Roberts, Charles T and Nagalla, Srinivasa R and Gravett, Michael G
Journal: American journal of obstetrics and gynecology (2015): 82--e1

Development of Multi-Parametric/Multimodal Spectroscopy Apparatus for Characterization of Functional Interfaces
Authors: Zhou, Lang and Arugula, Mary and Easley, Christopher J and Shannon, Curtis and Simonian, Aleks and r, undefined
Journal: ECS Transactions (2015): 9--16

Array of biodegradable microrafts for isolation and implantation of living, adherent cells
Authors: Wang, Yuli and Phillips, Colleen N and Herrera, Gabriela S and Sims, Christopher E and Yeh, Jen Jen and Allbritton, Nancy L
Journal: RSC advances (2013): 9264--9272

Development of SNAP-Tag Fluorogenic Probes for Wash-Free Fluorescence Imaging
Authors: Sun, Xiaoli and Zhang, Aihua and Baker, Brenda and Sun, Luo and Howard, Angela and Buswell, John and Maurel, Damien and Masharina, Anastasiya and Johnsson, Kai and Noren, Christopher J and others, undefined
Journal: ChemBioChem (2011): 2217--2226

FERRAMENTAS PARA ESTUDO DA BIOLOGIA DE GPCRS (G-PROTEIN COUPLED RECEPTORS)
Authors: Soriani, Frederico Marianetti and Russo, Remo Castro

References

View all 25 references: Citation Explorer

Time-resolved FRET method for typing polymorphic alleles of the human leukocyte antigen system by using a single DNA probe
Authors: Andreoni A, Bondani M, Nardo L.
Journal: Photochem Photobiol Sci (2009): 1202

Tumor-specific detection of an optically targeted antibody combined with a quencher-conjugated neutravidin "quencher-chaser": a dual "quench and chase" strategy to improve target to nontarget ratios for molecular imaging of cancer
Authors: Ogawa M, Kosaka N, Choyke PL, Kobayashi H.
Journal: Bioconjug Chem (2009): 147

The detection of platelet derived growth factor using decoupling of quencher-oligonucleotide from aptamer/quantum dot bioconjugates
Authors: Kim GI, Kim KW, Oh MK, Sung YM.
Journal: Nanotechnology (2009): 175503

Development of a cell-based hepatitis C virus infection fluorescent resonance energy transfer assay for high-throughput antiviral compound screening
Authors: Yu X, Sainz B, Jr., Uprichard SL.
Journal: Antimicrob Agents Chemother (2009): 4311

An improved cell-penetrating, caspase-activatable, near-infrared fluorescent peptide for apoptosis imaging
Authors: Maxwell D, Chang Q, Zhang X, Barnett EM, Piwnica-Worms D.
Journal: Bioconjug Chem (2009): 702

Feasibility of single nucleotide polymorphism genotyping with a single-probe by time-resolved Forster resonance energy transfer
Authors: Andreoni A, Bondani M, Nardo L.
Journal: Mol Cell Probes (2009): 119

Photodynamic molecular beacon triggered by fibroblast activation protein on cancer-associated fibroblasts for diagnosis and treatment of epithelial cancers
Authors: Lo PC, Chen J, Stefflova K, Warren MS, Navab R, B and archi B, Mullins S, Tsao M, Cheng JD, Zheng G.
Journal: J Med Chem (2009): 358

Rapid detection and quantification of Propionibacteriaceae
Authors: Goldschmidt P, Ferreira CC, Degorge S, Benallaoua D, Boutboul S, Laroche L, Batellier L, Chaumeil C.
Journal: Br J Ophthalmol (2009): 258

Evaluation of tetramethylrhodamine and black hole quencher 1 labeled probes and five commercial amplification mixes in TaqMan real-time RT-PCR assays for respiratory pathogens
Authors: Yang GP, Erdman DD, Tondella ML, Fields BS.
Journal: J Virol Methods (2009): 288

Design of FRET-TaqMan probes for multiplex real-time PCR using an internal positive control
Authors: Jothikumar P, Hill V, Narayanan J.
Journal: Biotechniques (2009): 519